【Features】 ● This is a self-powered/bus-powered USB hub that comes with an AC adapter. ● It has individual switches that allow you to turn the power to USB devices on/off while they are still connected. ● It supports USB 3.0, which achieves a transfer speed of 5 Gbps, about 10 times faster (theoretical value) than the conventional USB 2.0. ● If you have a USB 3.0 compatible computer or device, you can transfer large amounts of data at high speed. ● It can also be used with USB 2.0/1.1, so you can connect it directly to USB 2.0/1.1 compatible computers and devices. ● By using the included AC adapter and using the self-powered mode, you can provide a stable power supply even when using power-hungry devices such as hard disk drives and DVD drives (※). ● ※ It does not support fast charging of smartphones and tablets. If you want to use fast charging, please prepare a separate AC charger that supports fast charging. ● ※ Do not use any AC adapter other than the included dedicated AC adapter. ● Equipped with strong magnets that can be fixed to the side of a steel desk or desktop computer. ● By arranging the ports in a row, you can connect cables in one direction, keeping your desk area tidy. ● Each port has an LED lamp to check the communication status. ● Each port comes with a connection device display label that allows you to identify the connected USB device. ● This product is for expanding USB ports. We do not recommend using this product to charge smartphones or tablets. 【Specifications】 ■ USB cable method: USB 3.0 ■ USB cable length: Approximately 1.0m (excluding connector) ■ Power supply method: Self-powered ■ Available current: USB 3.0 connection, self-powered: within 3,600mA total for 4 ports (less than 900mA per port) Bus-powered: within 720mA total for 4 ports (less than 180mA per port) ■ DC cable length (included AC adapter): Approximately 90cm (excluding connector) ■ Color: Black ■ External dimensions: Approximately width 113.0 x depth 57.0 x height 20.0mm (excluding cable) ■ Weight: Approximately 110g ■ Accessories: Dedicated AC adapter, connection device display label ■ Electrical Appliance and Material Safety Law: PSE compliant (AC adapter)